From bcbdfc7fadf8018552fd55e57114a77637395684 Mon Sep 17 00:00:00 2001 From: Oliver Neukum Date: Thu, 12 Mar 2026 10:45:28 +0100 Subject: [PATCH] iowarrior: use interruptible lock in iowarrior_write() The function itself, if it has to wait to perform IO, use interruptible sleep. Hence the sleep needed to avoid the write code path racing with itself should also use interruptible sleep. Signed-off-by: Oliver Neukum Link: https://patch.msgid.link/20260312094619.1590556-2-oneukum@suse.com Signed-off-by: Greg Kroah-Hartman --- drivers/usb/misc/iowarrior.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/usb/misc/iowarrior.c b/drivers/usb/misc/iowarrior.c index 5b31e5669d53..0b377204374f 100644 --- a/drivers/usb/misc/iowarrior.c +++ b/drivers/usb/misc/iowarrior.c @@ -362,13 +362,16 @@ static ssize_t iowarrior_write(struct file *file, size_t count, loff_t *ppos) { struct iowarrior *dev; - int retval = 0; + int retval; char *buf = NULL; /* for IOW24 and IOW56 we need a buffer */ struct urb *int_out_urb = NULL; dev = file->private_data; - mutex_lock(&dev->mutex); + retval = mutex_lock_interruptible(&dev->mutex); + if (retval < 0) + return -EINTR; + /* verify that the device wasn't unplugged */ if (!dev->present) { retval = -ENODEV;